KR0129287Y1 - Safety apparatus of the fuel pump for an automobile - Google Patents

Safety apparatus of the fuel pump for an automobile Download PDF

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Publication number
KR0129287Y1
KR0129287Y1 KR2019940038829U KR19940038829U KR0129287Y1 KR 0129287 Y1 KR0129287 Y1 KR 0129287Y1 KR 2019940038829 U KR2019940038829 U KR 2019940038829U KR 19940038829 U KR19940038829 U KR 19940038829U KR 0129287 Y1 KR0129287 Y1 KR 0129287Y1
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KR
South Korea
Prior art keywords
fuel
tank
fuel pump
pump
fuel tank
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Application number
KR2019940038829U
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Korean (ko)
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KR960023295U (en
Inventor
이시훈
Original Assignee
전성원
현대자동차주식회사
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Priority to KR2019940038829U priority Critical patent/KR0129287Y1/en
Publication of KR960023295U publication Critical patent/KR960023295U/en
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Publication of KR0129287Y1 publication Critical patent/KR0129287Y1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/04—Feeding by means of driven pumps
    • F02M37/14—Feeding by means of driven pumps the pumps being combined with other apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/04—Feeding by means of driven pumps
    • F02M37/08—Feeding by means of driven pumps electrically driven
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K2015/0321—Fuel tanks characterised by special sensors, the mounting thereof
    • B60K2015/03217—Fuel level sensors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K2015/03243—Fuel tanks characterised by special pumps, the mounting thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K2015/03256—Fuel tanks characterised by special valves, the mounting thereof

Abstract

본 고안은 연료펌프를 연료탱크내에 설치하는 형식의 차량용 연료펌프의 안전장치에 관한 것으로서, 연료탱크에 연료의 잔량이 적은 상태에서 차량이 경사가 심한 도로를 주행할 때 연료펌프가에 증기 또는 공기의 흡입을 방지토록하여 연료펌프의 고장원인을 배제토록 한 것이다.The present invention relates to a safety device of a vehicle fuel pump of a type in which a fuel pump is installed in a fuel tank. This prevents the intake of fuel pumps and eliminates the cause of the failure of the fuel pump.

본 고안은 연료탱크(1)내에 상단에 연료주입구겸 배출구(3)가 형성된 연료저장조(2)를 연료탱크(1)와 독립되며 그 하단이 연료탱크(1)의 저면과 일정간극이 형성되게 설치하여 그 내부에 연료펌프(4)를 설치함과 동시에 연료펌프(4)에 연결된 흡입관(5)의 흡입구(6)는 연료탱크(1)의 저면에 위치되게 하며, 연료저장조(2)의 외부에 연료센서(플로팅센서)(7)를 설치하여 그 신호를 제어장치(ECU)(미도시)에 입력토록 하고, 흡입관(5)에 연료저장조(2)의 내부에 위치되는 제2흡입관(8)을 연결함과 동시에 그 연결부에 상기한 연료센서(7)의 입력신호에 의하여 제어장치(ECU)가 발생하는 구동신호로서 작동되는 절환밸브(삼방밸브)(9)를 설치하며, 환유관(return pipe)(10)을 연료저장조(2)의 내부에 위치되게 설치한 것이다.The present invention has a fuel reservoir (2) having a fuel inlet and outlet (3) at the upper end of the fuel tank (1) independent of the fuel tank (1) and the lower end of the fuel tank (1) to form a predetermined gap And the fuel pump 4 is installed therein, and the suction port 6 of the suction pipe 5 connected to the fuel pump 4 is located at the bottom of the fuel tank 1, and the fuel reservoir 2 is A fuel intake (7) is provided on the outside and the signal is inputted to a control unit (ECU) (not shown), and the second intake pipe (located inside the fuel storage tank 2 in the intake pipe 5) ( 8) and a switching valve (three-way valve) 9, which is operated as a drive signal generated by the control unit ECU by the input signal of the fuel sensor 7, described above, is connected to the connecting portion. (return pipe) 10 is installed to be located inside the fuel reservoir (2).

Description

차량용 연료펌프의 안전장치Safety device of vehicle fuel pump

제1도는 본 고안의 실시예의 단면도.1 is a cross-sectional view of an embodiment of the present invention.

제2도는 본 고안의 실시예의 작용상태도.2 is a working state of the embodiment of the present invention.

제3도는 종래의 연료펌프의 안전장치의 단면도.3 is a cross-sectional view of a safety device of a conventional fuel pump.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

1 : 연료탱크 2 : 연료저장조1: fuel tank 2: fuel storage tank

4 : 연료펌프 5 : 흡입관4 fuel pump 5 suction tube

6 : 흡입구 7 : 연료위치센서6: Inlet port 7: Fuel position sensor

8 : 제2흡입관 9 : 절환밸브8: second suction pipe 9: switching valve

10 : 환유관10: oil pipe

본 고안은 차량용 연료펌프의 안전장치에 관한 것이며, 특히 연료펌프를 연료탱크내에 설치하는 형식의 차량용 연료펌프의 안전장치에 관한 것이다.The present invention relates to a safety device for a vehicle fuel pump, and more particularly, to a safety device for a vehicle fuel pump of a type in which a fuel pump is installed in a fuel tank.

연료펌프를 연료탱크내에 설치하는 형식의 차량은 경사가 심한 도로를 주행하거나 코너링시에 연료펌프의 흡입부가 연료유면에서 노출되면 연료펌프로 증기 또는 공기가 흡입되어서 연료펌프의 고장을 일으키고 있는 바, 상기한 고장의 원인을 예방하기 위하여 종래에는 제3도에 도시한 바와 같이 연료탱크(20)의 저면에 접시형상의 연료저장조(21)를 설치하여 그 내부하단에 연료펌프(22)의 흡입부(23)가 위치되게 설치하였으나 연료의 잔량이 극히 적거나 경사가 극심한 도로를 주행할 경우에는 연료저장조(21)에 저장된 연료가 연료탱크(20)로 넘치게 되므로서 소기의 목적 달성이 어려운 문제점이 있는 것이다.When the fuel pump is installed in the fuel tank, if the intake part of the fuel pump is exposed at the oil level during cornering or when cornering, the fuel pump sucks steam or air, causing the fuel pump to malfunction. In order to prevent the cause of the above-described failure, conventionally, as shown in FIG. 3, a plate-shaped fuel storage tank 21 is installed at the bottom of the fuel tank 20, and the suction part of the fuel pump 22 is disposed at the lower end thereof. (23) is installed but the fuel is stored in the fuel tank (21) overflows the fuel tank (20) when driving the road with a very small amount of fuel or the slope is extremely difficult to achieve the desired purpose It is.

본 고안은 상기한 문제점을 시정하여 연료의 잔량이 적을 때 경사가 심한 도로를 주행할 경우에도 연료펌프의 흡입구가 항상 연료속에 위치토록 하므로서 연료펌프에 공기등의 흡입이 없도록 한 차량용 연료펌프의 안전장치를 제공하는 것을 목적으로 한다.The present invention corrects the above problems so that the inlet of the fuel pump is always located in the fuel even when driving on a severe slope when the fuel level is low, so that the fuel pump has no inhalation of air in the fuel pump. It is an object to provide a device.

본 고안은 상기한 목적을 달성하기 위하여 연료탱크내에 연료저장조를 그 하단이 연료탱크의 저면과 일정간극이 형성되게 설치하여 그 내부에 연료펌프를 설치함과 동시에 흡입관의 흡입구는 연료탱크의 저면에 위치되게 하고, 연료저장조의 외부에 연료센서를 설치하며, 흡입관에 연료저장조의 내부에 위치되는 제2흡입관을 연결함과 동시에 그 연결부에 절환밸브를 설치하며, 환유관은 연료저장조 내부에 위치되게 설치한 것이다.In order to achieve the above object, the present invention installs a fuel reservoir in the fuel tank so that the lower end thereof has a predetermined gap with the bottom of the fuel tank, and installs a fuel pump therein, while the suction port of the suction pipe is located at the bottom of the fuel tank. The fuel sensor is installed on the outside of the fuel reservoir, the second suction pipe located inside the fuel reservoir is connected to the suction pipe, and a switching valve is installed at the connection thereof, and the oil pipe is positioned inside the fuel reservoir. It is installed.

이하 실시예를 도면에 의하여 설명한다.Embodiments will be described below with reference to the drawings.

본 고안은 제1도에 도시한 바와 같이 연료탱크(1)내에 상단에 연료주입구겸 배출구(3)가 형성된 연료저장조(2)를 연료탱크(1)와 독립되며 그 하단이 연료탱크(1)의 저면과 일정간극이 형성되게 설치하여 그 내부에 연료펌프(4)를 설치함과 동시에 연료펌프(4)에 연결된 흡입관(5)의 흡입구(6)는 연료탱크(1)의 저면에 위치되게 하며, 연료저장조(2)의 외부에 연료센서(플로팅센서)(7)를 설치하여 그 신호를 제어장치(ECU)(미도시)에 입력토록 하고, 흡입관(5)에 연료저장조(2)의 내부에 위치되는 제2흡입관(8)을 연결함과 동시에 그 연결부에 상기한 연료센서(7)의 입력신호에 의하여 제어장치(ECU)가 발생하는 구동신호로서 작동되는 절환밸브(삼방밸브)(9)를 설치하며, 환유관(return pipe)(10)을 연료저장조(2)의 내부에 위치되게 설치한 것으로서, 흡입관(5)의 흡입구(6)가 위치되는 연료탱크(1)의 저면에는 요부(11)를 설치하여서 된 것이다. 또한 흡입관(5)의 흡입구(6)와 제2흡입관(8)의 흡입구에는 필터를 설치하는 것이 좋다.In the present invention, as shown in FIG. 1, the fuel storage tank 2 having the fuel inlet and outlet 3 formed at the upper end of the fuel tank 1 is independent of the fuel tank 1, and the lower end thereof is the fuel tank 1; The fuel pump 4 is installed inside the bottom surface of the fuel tank 4 while the inlet 6 of the suction pipe 5 connected to the fuel pump 4 is positioned at the bottom of the fuel tank 1. A fuel sensor (floating sensor) 7 is installed outside the fuel reservoir 2 to input a signal to a control unit (ECU) (not shown), and the suction pipe 5 of the fuel reservoir 2 A switching valve (three-way valve) operated as a drive signal generated by the control unit ECU by the input signal of the fuel sensor 7 described above and connected to the second suction pipe 8 located therein ( 9), the return pipe 10 is installed to be located inside the fuel reservoir 2, and the suction port 6 of the suction pipe 5 The recess 11 is provided on the bottom of the fuel tank 1 to be positioned. In addition, it is preferable to provide a filter at the suction port 6 of the suction pipe 5 and the suction port of the second suction pipe 8.

미 설명부호 12 는 연료송출관, 13 은 연료주입관이다.Reference numeral 12 is a fuel discharge pipe, and 13 is a fuel injection pipe.

이상과 같은 본 고안은 연료주입관(13)을 통하여 연료탱크(1)에 연료를 충분히 주입하면 연료탱크(1)내의 연료는 연료주입구겸 배출구(3)를 통하여 연료저장조(2)에도 연료가 주입되어 연료탱크(1)와 연료저장조(2)의 유면은 동일하게 되며 차량의 주행시에 연료센서(7)가 연료에 잠겨있으면 흡입관(5)에 설치된 절환밸브(9)는 상기한 연료센서(7)의 입력신호에 의하여 제어장치(ECU)가 제2흡입관(8)은 폐쇄하고 흡입관(5)을 개방하는 방향으로 열므로서, 연료탱크(1)내의 연료가 연료펌프(4)로 흡입되어 연료송출관(12)으로 배출되므로 연료저장조(2)내의 연료는 전혀 소모되지 않으며, 환유관(10)으로 회수되는 연료에 의하여 연료저장조(2)의 유면은 상승되고 그 유면이 연료주입구겸 배출구(3)에 이르면 연료저장조(2)의 연료는 연료주입구겸 배출구(3)를 통하여 연료탱크(1)로 배출되어 연료저장조(2)내의 연료는 항상 충만된 상태에 있게 된다. 그러나 연료탱크(1)내의 연료의 잔량이 적은 상태에서 차량이 경사가 심한 도로등을 주행하여 연료탱크(1)내의 유면이 제2도와 같이 되면 연료센서(7)는 연료탱크(1)내에 연료가 적음을 감지하여 그 신호를 제어장치(ECU)에 입력하므로서 제어장치(ECU)가 절환밸브(9)를 전환하여 흡입관(5)은 폐쇄되고 제2흡입관(8)을 개방하므로서 연료저장조(2)내의 연료가 연료펌프(4)로 흡입되어 연료송출관(12)으로 배출되는 것이며, 연료저장조(2)내의 연료는 연료탱크(1)의 경사에 의하여 연료의 일부가 연료탱크(1)로 배출되나 남은 연료량이 많으므로 차량이 일시적으로 경사진 도로를 주행할 경우에도 연료펌프에 증기 또는 공기등이 흡입되는 것이 방지되고 안정된 연료의 공급이 가능하므로 연료펌프의 고장원인이 배제 되는 것이다.According to the present invention as described above, when the fuel is sufficiently injected into the fuel tank 1 through the fuel injection pipe 13, the fuel in the fuel tank 1 is supplied to the fuel storage tank 2 through the fuel inlet and discharge port 3. When the fuel tank 1 and the fuel storage tank 2 are injected to have the same oil level, and the fuel sensor 7 is immersed in the fuel while the vehicle is running, the switching valve 9 installed in the suction pipe 5 is the fuel sensor ( In response to the input signal of 7), the control unit ECU closes the second suction pipe 8 and opens in the direction of opening the suction pipe 5, whereby the fuel in the fuel tank 1 is sucked into the fuel pump 4 Since the fuel is discharged to the fuel delivery pipe 12, the fuel in the fuel storage tank (2) is not consumed at all, the oil level of the fuel storage tank (2) is raised by the fuel recovered in the oil refining pipe (10) and the oil surface is the fuel inlet and When the outlet (3) is reached, the fuel in the fuel storage tank (2) is opened through the fuel inlet and outlet (3). Is discharged to the tank 1, the fuel in the fuel reservoir 2 is in a state always filled. However, when the vehicle runs on a heavily inclined road or the like when the remaining amount of fuel in the fuel tank 1 is low and the oil level in the fuel tank 1 reaches the second degree, the fuel sensor 7 causes the fuel into the fuel tank 1. Is detected and the signal is inputted to the control unit ECU so that the control unit ECU switches the switching valve 9 so that the intake pipe 5 is closed and the second intake pipe 8 is opened. Fuel in the fuel pump 4 is discharged to the fuel delivery pipe 12, and the fuel in the fuel storage tank 2 is partially fueled by the inclination of the fuel tank 1 to the fuel tank 1; Although the amount of fuel is discharged, the fuel pump is prevented from being inhaled by steam or air even when the vehicle is temporarily driving on a sloped road, and stable fuel can be supplied.

이상과 같이 본 고안은 연료탱크내에 연료저장조를 설치하여 연료탱크내에 연료의 잔량이 적은 상태에서 차량이 경사가 심한 도로를 주행할 때에는 연료저장조의 연료를 연료펌프가 흡입토록하므로서, 연료펌프에 증기 또는 공기의 흡입이 방지되어 안정된 연료의 공급이 가능하므로 연료펌프의 고장원인을 배제하고, 연료펌프의 부하 변동을 억제하므로서, 그 수명을 연장할 수 있는 등의 효과가 있는 것이다.As described above, the present invention installs a fuel storage tank in the fuel tank, so that the fuel pump sucks the fuel from the fuel storage tank when the vehicle runs on a road inclined in a state where the fuel remaining in the fuel tank is low. Alternatively, since the intake of air is prevented and stable fuel can be supplied, the cause of failure of the fuel pump can be eliminated, and the load variation of the fuel pump can be suppressed, thereby extending the life thereof.

Claims (1)

연료탱크내에 연료저장조를 그 하단이 연료탱크의 저면과 일정간극이 형성되게 설치하여 그 내부에 연료펌프를 설치함과 동시에 흡입관의 흡입구는 연료탱크의 저면에 위치되게 하고, 연료저장조의 외부에 연료센서를 설치하며, 흡입관에 연료저장조의 내부에 위치되는 제2흡입관을 연결함과 동시에 그 연결부에 절환밸브를 설치하며, 환유관은 연료저장조 내부에 위치되게 설치한 차량은 연료펌프의 안전장치.The fuel tank is installed in the fuel tank so that the lower end of the fuel tank is formed with a predetermined gap. The fuel pump is installed inside the fuel tank, and the suction port of the suction pipe is located at the bottom of the fuel tank. A sensor is installed, and a suction valve is connected to the suction pipe, and a switching valve is installed at the connection pipe, and the oil pipe is installed inside the fuel reservoir, and the vehicle is a safety device for the fuel pump.
KR2019940038829U 1994-12-30 1994-12-30 Safety apparatus of the fuel pump for an automobile KR0129287Y1 (en)

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KR2019940038829U KR0129287Y1 (en) 1994-12-30 1994-12-30 Safety apparatus of the fuel pump for an automobile

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Application Number Priority Date Filing Date Title
KR2019940038829U KR0129287Y1 (en) 1994-12-30 1994-12-30 Safety apparatus of the fuel pump for an automobile

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KR960023295U KR960023295U (en) 1996-07-20
KR0129287Y1 true KR0129287Y1 (en) 1998-12-15

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